Ballpoint pen



FIG. 1 is a perspective view of the top, front and right side of aballpoint pen showing my new design, with the writing tip in a retractedposition;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front elevational view thereof with the writing tip in anextended position.

The ornamental design for a ballpoint pen, as shown and described.